If you have upgraded to bigger tires on your Jeep JK these Dana 30 JK lower gear sets will be perfect to restore your lost power. ECGS has the best Dana 30 JK brand name parts online from Nitro Gear, Yukon, ARB, Detroit, Lok-Right, and other fine performance parts suppliers.

Description: The True Trac limited slip uses a worm-gear design to bias torque from one tire to the other, providing extremely smooth operation. Since there are no clutches in this unit, there are no parts to...More Details »

Description: The Eaton E-locker uses Electro-Magnets to provide full lock-up at the push of a button. When the unit is disengaged it is a standard open differential. This unit comes with all associated parts...More Details »

Description: East Coast Gear Supply ring and pinions are forged out of 8620 Steel. This is a quality Quiet gear, perfect for any vehicle from street use to offroad.
Fits high Pinion applications: Jeep JK

Description: The Aussie Locker XD-13227 is the most advanced "traction added" Automatic Precision Locker in the world today. Specifically designed for off-highway enthusiasts and wheelers the Aussie Locker has...More Details »

Description: Yukon Ring & Pinion sets give you the confidence of knowing you're running gears designed for the harshest of conditions. Whether it's on the street, off-road, or at the track; Yukon ring & pinion...More Details »

Description: Yukon Ring & Pinion sets give you the confidence of knowing you're running gears designed for the harshest of conditions. Whether it's on the street, off-road, or at the track; Yukon ring & pinion...More Details »

Description: Yukon Ring & Pinion sets give you the confidence of knowing you're running gears designed for the harshest of conditions. Whether it's on the street, off-road, or at the track; Yukon ring & pinion...More Details »

Description: Spartan Locker for Dana 30 with 27 Spline axles. The Spartan Locker by USA Standard Gear is a mechanical locker that replaces the spiders in a standard case. The Spartan Locker's design does not...More Details »

Description: Spartan Locker for Dana 30 with 27 Spline axles. The Spartan Locker by USA Standard Gear is a mechanical locker that replaces the spiders in a standard case. The Spartan Locker's design does not...More Details »

Description: Features Include:
*Unique air operated piston style actuator aims to eliminate the risk of oil being pumped up the airline.
*Hardened thrust washers and the size of the locking ring make Pro...More Details »